Unexplained bald patches in the landscape grow and recede over time, as though they are somehow alive.

This "dead marsh" sits among the largest sand dunes in the world, a forest frozen in time.

Nestled in a peaceful valley, this Armenian monastery may have been saved from Mongols thanks to the eyes of God.

This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

An elaborate shrine dedicated to the four corners of the world unfortunately misses its mark.

Museum dedicated to the sacred leaf of the Andes.

Popular tourist destination where witches in dark hats sell dried llama fetuses for good luck.

On this tiny spot of land in the middle of Lake Titicaca the only ones who do the knitting are the men.

The Uros people live on floating reed islands in lake Titicaca.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

The mysterious "Candelabra of the Andes" could represent anything from a god's trident to a hallucinogenic plant.

A "miracle" that seems to produce more holy fistfights than holy revelations.

Only gap in the 30,000-mile span of roads called the Pan-American Highway.

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.

The ancient latrines of the Greeks, in all their public glory.

The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

Roman ruins top white travertine terraces formed by ancient hot springs.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.

Gladiators battle and chariots race daily in the ruins of a once-great Roman city.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

The home of the Dead Sea Scrolls is an abstract modernist dream.

These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.